{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2390",
    "entityType": "User",
    "nonce": "0x33dfb6e5e3236e1d63f1f29a717c9d19bffabc1234e526eb42258043645198f9",
    "signature": "0x12895812cf97f214bd492d488293a3824eb10a7dd20979afd18380593c4f596240edc89f8ff413b8c3add9f85747316b0568537330ab6fb1782db4a85a179d191b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}